112 



PYGOPODES. 



COLYMBIDyE. 



COLYMBIDjE. 



COLYMBUS SEPTENTRIONALIS, LiimseUS.* 



THE RED-THROATED DIVER. 



Colymhus septentrionalis. 



The Red-throated Diver is the smallest species of the 

 genus, as well as the most common ; immature birds espe- 

 cially, and adults with the white throats of the winter 

 plumage in smaller numbers, being found on the coasts of 

 the British Islands from autumn to spring ; in fact, some 

 * Syst. Nat. Ed. 12, i. p. 2'20 (1766). 



